Javascript in Google Sheets script: help using setNumberFormat

Question

Hoping this is a simple problem for you lot. I have no coding knowledge at all. But been using the below script in a Google Sheet to grab changing data from another sheet an

Answer 1

To specify the format for a specific cell

var cell = sheet.getRange("A2");
cell.setNumberFormat("dd/MM/yyyy");

To specify the format for a range of cells

var cells = sheet.getRange("A2:C2");
cells.setNumberFormat("dd/MM/yyyy");

Please see the documentation for Range and formats.